Okay, call me crazy (won't be the first time nor the last

) but....
How sick can Zoey really be when she is putting on sooooo much weight??!!
She weighed in right before spay surgery at 4 lbs 15 oz. Now 24 days later and sick.... she weighs 5 lbs 10 oz.
Doesn't that sound like alot to you??? Or is it like humans and changes hormones and thus weight gain?